<script type="text/javascript">
	$(document).ready(function() {
		$('#user_change').change(function() {
		  window.location = '<?php echo $controller_action;?>'+$('#user_change').val();
		 })
	});
</script>
<select id="user_change">
<?php 
	foreach ($users_array as $user){

		if ($user['User']['id'] == $user_id){
			$selected = ' selected="selected" ';
		}else{
			$selected = '';
		}

		print '<option '.$selected.' value="'.$user['User']['id'].'">'.$user['User']['firstname'].'&nbsp;'.$user['User']['lastname'].'&nbsp;['.$user['User']['email'].']&nbsp;'.$user['User']['username'].'</option>';

	}
?>
</select>
<br /><br />